<form name="punchout_form" method="post" action="https://openapi-sandbox.dl.alipaydev.com/gateway.do?charset=UTF-8&method=alipay.trade.page.pay&sign=ZJ2rdve6Z%2FFRO0izJLUpe9W75p9DoYjQuLZysFQhgN59PTHvoIch4e%2BULhxZ%2BicmEmywYiGSn2bl0JGr3JUyw4PohGfm6NEy3pAY9zFBh5eQZRavT8YU4TLv0%2BSJGi912SgCJKGfKywQ0IHHwuwqR0z204QkvdczGUx%2FJPShUn3%2FaEGPRl9tX6hJ9x0wHyepDLLtQ2pI9x5JrchZb%2Fahvd6e2K%2F%2BfU40P16mIL8PSsDK%2BU7ypFJjrOHj1k%2FGgUhg8mXWkyu4qFgYB%2BgJuqpAk51Nc3U8YZDn31%2FHRhGDs283r8cJAVIc3izfytAM7DwlehJZ07eX0K5WhwJCKkxDiw%3D%3D&version=1.0&app_id=2021000122637822&sign_type=RSA2&timestamp=2025-05-09+20%3A48%3A47&alipay_sdk=alipay-sdk-java-dynamicVersionNo&format=JSON">
    <input type="hidden" name="biz_content" value="{&quot;out_trade_no&quot;:&quot;12fssdr112sdfdf12334&quot;,&quot;product_code&quot;:&quot;FAST_INSTANT_TRADE_PAY&quot;,&quot;subject&quot;:&quot;测试商品&quot;,&quot;total_amount&quot;:&quot;12.34&quot;}">
    <input type="submit" value="立即支付" style="display:none" >
</form>
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